402053479 has 2 divisors, whose sum is σ = 402053480. Its totient is φ = 402053478.

The previous prime is 402053473. The next prime is 402053497. The reversal of 402053479 is 974350204.

Together with next prime (402053497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402053479 - 2⁵ = 402053447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402053473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201026739 + 201026740.

It is an arithmetic number, because the mean of its divisors is an integer number (201026740).

Almost surely, 2^402053479 is an apocalyptic number.

402053479 is a deficient number, since it is larger than the sum of its proper divisors (1).

402053479 is an equidigital number, since it uses as much as digits as its factorization.

402053479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 402053479 is about 20051.2712564565. The cubic root of 402053479 is about 738.0649951448.

The spelling of 402053479 in words is "four hundred two million, fifty-three thousand, four hundred seventy-nine".